Railway-signal fusee.



R. M. CLARK.

RAILWAY SIGNAL PUSEE.

APPLIOATION FILED MAY 5, 1914.

1,129,644. Patented Feb. 23, 1915 l v Y ggg '-7 Y fg f@ f aum ROBERT M. CLARK, F

OF NEW JERSEY.

RAILWAY SGNAL To all when it Be 1t Known eltizen of the muy concern that I, Roinm ivi.. ifi/Aim, United States, residing et Newton Center, in the county of lvliddlesex and State of Messucl'iusette, lieve invented certain new and useful mproveuients .in Railway Sigrml-Fueees,el wliivii the follonn ing is n specification, referenee being had therein to the accompanying fliawuig My invention i'elutes to ii'npimeuiente in Railway Signal Fusees. unil pertains te tuin improvemente'l'or securing a spike plug in one end of the fusee tube. l-Lnetofen-e7 the spike plugs used in tlie ends; of fue-ees have been secured in the open euri of the fusee tube1 and the plug when mude of metal glued within the tube, und when runde oi' wood is glued or tneliedfor both, to lie eigen end of the tube.

My present improvement consists in bold ing the plug within the fuse@ tube by turning the end u'ull of tile tube inwni-d und glu4 ing it to the outer ene of the plug. und ulm gluing' the l eide of the plug' to the mun wzii of the tube, and to puck tiie burning 4u' nal compound ".viliiu the tube uguiust the inner end of the plug, tliuel eupijliineutiiig the glue in holdingr the plug against iuuiufs movement within the tube.

In the uecon'ipany/ini. drawings Figure 1 is a. sectional view ol' a tusee slewing in) im proved manner of holding the spike plug within one end thereof. Fig. 2 is u pesi-'pevtive view of a fusee with the spike pluit held therein by my iinpioveinent. lu euri-ying out my improvement, the usuel fiber or paper tube i. is employed und the null tiieieof is turned or eiilnpeil inward7 shown at 2, forming u closure with u eenti'ul @pere ing 3, tlf/Hough which the mille AlV pus ee. The spike 4, is ciu-vieil by tlie plug '.lhis.

plug is of a eontou' und size io lit the inu temor of the tube l.

lli the muuu'r'aetui'e of the fuse@ with my uf holding tl'e plug: in position, one of the two following methods may be followed. 'l'lie tube l iu-,1y iii-ut have the burning or signul cou'uioimil 6 packed therein und then u portion thereof removed or drilled from one end sulihientiy to receive the plug und u pai-t et the tube to extend beyond tlul plug u. Then the pmjeeting end of the Lube coated with i -.iyei of glue 7; the plug 'pli-ucd iu uofritien, the inner end thereof abutting agrziiuwi die vom improved method a "e ATE@ li unteren CENTER, u

Specification of Letters Ee' mt,

the Sigiiu applied te t Y T. Y plug j ,fufibed iii 'tube :nfl il pound it in eure z.. i to the gipi'm' uit i freni 'liu i ipmziiz nel vibi ne. thrust. of 'w ved ,mtu un Nilis h' the tube tube, a. phg ting Within the end thereof 15 and carrying :1t its outer end a projecting spike, the end was of the tube crimped and turned inwardy against the end of the plug ne @ouml-Log u @ber around he and a cementin composime en-:V Sher tion between the tube and the crlmped end 20 oa its outer and e. projec J* spike, of the plug. 'tin Lube u piped :me n esnmouy whereof hereunto alx my c end of sgnature n the presence of two wltnesses. 

